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<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>4-4 p标签不能包裹div</title>
</head>

<body>
  <p>
    p标签...（请打开控制台看p标签不能包裹块级标签）
  <div>div标签...</div>
  </p>
</body>

</html>